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Pearlite is ______.

Q.  
Pearlite is ______.


Answer & Explanation

Pearlite is a diffusion transformation that forms when carbon steels undergo slow cooling. It consists of alternating layers of ferrite and cementite, and it forms during a eutectoid reaction where austenite transforms at a specific temperature.

Thus correct option is: A.

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In SAE designation of steel, last two digits indicate the ______.

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C. The average percentage of Fe in steel

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The ability of a material to exist in more than one crystal structure is known as ______.

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Which of the following are true for electron microscopy?

A. specimen should be thin and dry

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C. electron beam must pass through evacuated chamber

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Degree of scattering in transmission electron microscope is a function of ______.

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C. number and mass of atoms that lie in the electron path

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Answer & Explanation
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